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b2b33168b1
* libguile/control.c (reify_partial_continuation): * libguile/eval.c (RETURN_BOOT_CLOSURE): * libguile/frames.c (scm_frame_num_locals, scm_frame_local_ref) (scm_frame_local_set_x) * libguile/frames.h (SCM_FRAME_SET_RETURN_ADDRESS): (SCM_FRAME_SET_MV_RETURN_ADDRESS, SCM_FRAME_SET_DYNAMIC_LINK): * libguile/goops.c (scm_class_of, scm_primitive_generic_generic) (scm_c_extend_primitive_generic, compute_getters_n_setters) (scm_sys_initialize_object): * libguile/guardians.c (finalize_guarded): * libguile/list.c (SCM_I_CONS): * libguile/macros.c (scm_i_make_primitive_macro) (scm_make_syntax_transformer): * libguile/memoize.c (MAKMEMO, SCM_MAKE_MEMOIZER) (SCM_MAKE_REST_MEMOIZER): * libguile/modules.c (scm_module_reverse_lookup) * libguile/print.c (iprin1): * libguile/promises.c (scm_make_promise) * libguile/srcprop.c (scm_make_srcprops): * libguile/vectors.c (scm_c_vector_ref): * libguile/vm-engine.c (vm_engine) * libguile/vm-i-scheme.c (REL, add1, sub1): * libguile/vm-i-system.c (new_frame, call_cc) * libguile/weaks.h (SCM_WEAK_PAIR_WORD_DELETED_P): Be more careful about SCM_PACK / SCM_UNPACK.
101 lines
3.5 KiB
C
101 lines
3.5 KiB
C
/* classes: h_files */
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#ifndef SCM_WEAKS_H
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#define SCM_WEAKS_H
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/* Copyright (C) 1995,1996,2000,2001, 2003, 2006, 2008, 2009, 2011 Free Software Foundation, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public License
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* as published by the Free Software Foundation; either version 3 of
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* the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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* 02110-1301 USA
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*/
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#include "libguile/__scm.h"
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#define SCM_WVECTF_WEAK_KEY 1
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#define SCM_WVECTF_WEAK_VALUE 2
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#define SCM_WVECT_WEAK_KEY_P(x) (SCM_I_WVECT_EXTRA(x) & SCM_WVECTF_WEAK_KEY)
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#define SCM_WVECT_WEAK_VALUE_P(x) (SCM_I_WVECT_EXTRA(x) & SCM_WVECTF_WEAK_VALUE)
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#define SCM_I_WVECT_TYPE(x) (SCM_I_WVECT_EXTRA(x) & 7)
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#define SCM_I_SET_WVECT_TYPE(x,t) (SCM_I_SET_WVECT_EXTRA \
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((x), (SCM_I_WVECT_EXTRA (x) & ~7) | (t)))
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#define SCM_IS_WHVEC(X) (SCM_I_WVECT_TYPE (X) == 1)
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#define SCM_IS_WHVEC_V(X) (SCM_I_WVECT_TYPE (X) == 2)
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#define SCM_IS_WHVEC_B(X) (SCM_I_WVECT_TYPE (X) == 3)
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#define SCM_IS_WHVEC_ANY(X) (SCM_I_WVECT_TYPE (X) != 0)
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/* Weak pairs. */
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SCM_INTERNAL SCM scm_weak_car_pair (SCM car, SCM cdr);
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SCM_INTERNAL SCM scm_weak_cdr_pair (SCM car, SCM cdr);
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SCM_INTERNAL SCM scm_doubly_weak_pair (SCM car, SCM cdr);
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/* Testing the weak component(s) of a cell for reachability. */
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#define SCM_WEAK_PAIR_WORD_DELETED_P(_cell, _word) \
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(SCM_UNPACK (SCM_CELL_OBJECT ((_cell), (_word))) == 0)
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#define SCM_WEAK_PAIR_CAR_DELETED_P(_cell) \
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(SCM_WEAK_PAIR_WORD_DELETED_P ((_cell), 0))
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#define SCM_WEAK_PAIR_CDR_DELETED_P(_cell) \
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(SCM_WEAK_PAIR_WORD_DELETED_P ((_cell), 1))
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#define SCM_WEAK_PAIR_DELETED_P(_cell) \
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((SCM_WEAK_PAIR_CAR_DELETED_P (_cell)) \
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|| (SCM_WEAK_PAIR_CDR_DELETED_P (_cell)))
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/* Accessing the components of a weak cell. These return `SCM_UNDEFINED' if
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the car/cdr has been collected. */
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#define SCM_WEAK_PAIR_WORD(_cell, _word) \
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(SCM_WEAK_PAIR_WORD_DELETED_P ((_cell), (_word)) \
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? SCM_UNDEFINED \
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: SCM_CELL_OBJECT ((_cell), (_word)))
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#define SCM_WEAK_PAIR_CAR(_cell) (SCM_WEAK_PAIR_WORD ((_cell), 0))
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#define SCM_WEAK_PAIR_CDR(_cell) (SCM_WEAK_PAIR_WORD ((_cell), 1))
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/* Weak vectors and weak hash tables. */
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SCM_API SCM scm_make_weak_vector (SCM k, SCM fill);
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SCM_API SCM scm_weak_vector (SCM l);
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SCM_API SCM scm_weak_vector_p (SCM x);
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SCM_API SCM scm_make_weak_key_alist_vector (SCM k);
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SCM_API SCM scm_make_weak_value_alist_vector (SCM k);
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SCM_API SCM scm_make_doubly_weak_alist_vector (SCM k);
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SCM_API SCM scm_weak_key_alist_vector_p (SCM x);
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SCM_API SCM scm_weak_value_alist_vector_p (SCM x);
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SCM_API SCM scm_doubly_weak_alist_vector_p (SCM x);
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SCM_INTERNAL SCM scm_init_weaks_builtins (void);
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SCM_INTERNAL void scm_weaks_prehistory (void);
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SCM_INTERNAL void scm_init_weaks (void);
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SCM_INTERNAL void scm_i_init_weak_vectors_for_gc (void);
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SCM_INTERNAL void scm_i_mark_weak_vector (SCM w);
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SCM_INTERNAL int scm_i_mark_weak_vectors_non_weaks (void);
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SCM_INTERNAL void scm_i_remove_weaks_from_weak_vectors (void);
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#endif /* SCM_WEAKS_H */
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/*
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Local Variables:
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c-file-style: "gnu"
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End:
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*/
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